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Fix satellite dashboard refresh flows

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This commit is contained in:
James Smith
2026-03-18 22:53:36 +00:00
parent 6fd5098b89
commit 62ee2252a3
4 changed files with 257 additions and 127 deletions
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18
utils/satnogs.py
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@@ -179,15 +179,27 @@ def get_transmitters(norad_id: int) -> list[dict]:
"""
global _transmitters, _fetched_at # noqa: PLW0603
with _fetch_lock:
sat_id = int(norad_id)
age = time.time() - _fetched_at
# Fast path: serve warm cache immediately.
if _transmitters and age <= _CACHE_TTL:
return _transmitters.get(sat_id, _BUILTIN_TRANSMITTERS.get(sat_id, []))
# Avoid blocking the UI behind a long-running background refresh.
if not _fetch_lock.acquire(blocking=False):
return _transmitters.get(sat_id, _BUILTIN_TRANSMITTERS.get(sat_id, []))
try:
age = time.time() - _fetched_at
if not _transmitters or age > _CACHE_TTL:
fetched = fetch_transmitters()
if fetched:
_transmitters = fetched
_fetched_at = time.time()
return _transmitters.get(int(norad_id), _BUILTIN_TRANSMITTERS.get(int(norad_id), []))
return _transmitters.get(sat_id, _BUILTIN_TRANSMITTERS.get(sat_id, []))
finally:
_fetch_lock.release()
def refresh_transmitters() -> int: